TrailAir Kingpin question
I bought and installed a TrailAir kingpin earlier this year. It is now installed, and I am looking forward to my first trip out this weekend. I aired up the airbag to the top of the arrows, as sta...
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With no weight on the pin, the plate hangs down to its furthest travel limit. When you hook up, the pin rides up the hitch plate and compresses the air bladder while leveling out. I've found my "best ride" to be about 1/4" below the arrow's tip, however, 1/2" to right on the tip is satisfactory and as long as I'm in that range, I don't make any adjustments to it. Never measure the psi of the air in the bladder, I just go by the arrow position (that's what it is there for) as everyone's pin weight is going to be different and that affects the psi in the bladder needed to keep the unit in the middle of its travel range (the tip of the arrow). I suspect 90-100 psi in mine, with a pin weight under 1800 lbs. would put the arrow about 1 1/2" below the shield and it would ride like a solid attachment as opposed to "floating air support".
